//
//  获取对应名称的cookie
//  @param name cookie的名称
//  @returns {null} 不存在时，返回null
// 
export function setCookie(c_name, value, expire) {
    var date = new Date()
    date.setSeconds(date.getSeconds() + expire)
    document.cookie = c_name + "=" + escape(value) + "; expires=" + date.toGMTString()
        //console.log(document.cookie)
}

export function getCookie(c_name) {
    if (document.cookie.length > 0) {
        let c_start = document.cookie.indexOf(c_name + "=")
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1
            let c_end = document.cookie.indexOf(";", c_start)
            if (c_end == -1) c_end = document.cookie.length
            return unescape(document.cookie.substring(c_start, c_end))
        }
    }
    return ""
}

export function delCookie(c_name) {
    setCookie(c_name, "", -1)
}